Allow adding spots. Convert timestamps in the API to UNIX seconds. #2

core/utils.py

@@ -150,9 +150,7 @@ def infer_mode_from_frequency(freq):
 
 
 # Convert objects to serialisable things. Used by JSON serialiser as a default when it encounters unserializable things.
-# Converts datetimes to ISO.
-# Anything else it tries to convert to a dict.
+# Just converts objects to dict. Try to avoid doing anything clever here when serialising spots, because we also need
+# to receive spots without complex handling.
 def serialize_everything(obj):
-    if isinstance(obj, datetime):
-        return obj.isoformat()
     return obj.__dict__